<template>
  <div>
    <h3>AddItem组件</h3>
    <p>已知库存数:{{$store.state.num}}</p>
    <button @click="addFn">库存+1</button>
    <button @click="asyncFn1">延迟2秒</button>
  </div>
</template>

<script>
export default {
  methods: {
    addFn () {
      this.$store.commit('addNum')
    },
    asyncFn1 () {
      this.$store.dispatch('asyncAddNum', 5)
    }
  }
}
</script>
